diff --git a/Tools/scripts/sitl-on-hardware/sitl-on-hw.py b/Tools/scripts/sitl-on-hardware/sitl-on-hw.py
index 291005a7a7373..16707043a929d 100755
--- a/Tools/scripts/sitl-on-hardware/sitl-on-hw.py
+++ b/Tools/scripts/sitl-on-hardware/sitl-on-hw.py
@@ -66,6 +66,8 @@ def sohw_path(fname):
     defaults_write(open(args.defaults,"r").read() + "\n")
 
 if args.simclass:
+    if args.simclass == 'Glider':
+        hwdef_write("define AP_SIM_GLIDER_ENABLED 1\n")
     hwdef_write("define AP_SIM_FRAME_CLASS %s\n" % args.simclass)
 if args.frame:
     hwdef_write('define AP_SIM_FRAME_STRING "%s"\n' % args.frame)